today_ai_weather/app/models/weather_art.rb

class WeatherArt < ApplicationRecord
  extend FriendlyId
  friendly_id :weather_date, use: :slugged

  belongs_to :city
  has_one_attached :image

  validates :weather_date, presence: true
  validates :city_id, presence: true

  def should_generate_new_friendly_id?
    weather_date_changed? || city_id_changed? || super
  end

  def to_s
    "#{city.name} - #{weather_date.strftime('%Y-%m-%d')}"
  end

  def self.ransackable_associations(auth_object = nil)
    [ "city", "image_attachment", "image_blob" ]
  end

  def self.ransackable_attributes(auth_object = nil)
    [ "city_id", "cloud", "created_at", "description", "feeling_temp", "humidity", "id", "id_value", "precipitation", "pressure", "prompt", "temperature", "updated_at", "visibility", "weather_date", "wind_scale", "wind_speed" ]
  end
end